Fire pot



Mar. 6, 1923. 1,44%,796

, F. L. LINDHORST FIRE POT 'Filed Jan. 1e, 1922 2 sheets-sheet 2 Patented Mar. 6, i923.

htthdt l? I? l@ FREDERICK L. LINDHORST,-` OFDIJTROIT, MICHIGAN, .ASSIGNOB T0 DETROIT TORCH @c MANUFACTURING OOMANY, O DETROIT, MICHIGAN, A CORPORATION' 0F MICH- IGAN.

FIRE POT.

Application led January 16, 1922. Serial No. 529,712.

To all whom t may concern:

Be it known that I, FREDERICK Ii. LIND- Hons'r, a. citizen ot' the United States, residing at' Detroit, in the county otVVayne and State of Michigan, have invented certain new and useful Improvements in Fire Bots, ot which the following is aVv specifica.- tion. '4 l This invention relates to plumbers furnaces or ire-pots and has for its object a iire-pot which is provided with a solid grid which permits the burner tuelpipe to be removed from the top of the so-called coil cup or chimney without d .isassembling the grid from the chimney.

In the drawings,-

Fig. l is a vertical cross section of the lirepot.

Fig. 2 is a plan view of thesame.

Fig. 3 is a side elevation of the grid.

Fig. l is a perspective of the clamping clip and the tire guard. 4

a. designates what is commonly called a .coil cup but which. I prefer to call the chimney for the reason that my type of burner does not employ a coil and hence the term is not strictly accurate in connection wit-h my burner. i r

These coil cups or chimneys have generally been bolted to the grid b by such short studs as shown at c. Ordinarily Iin order to take the coil or the fuel pipe out of the chimney it is necessary to unbolt the grid not only from the stud c but from the supporting posts (Z. This is somewhat ot an inconvenience and it is the object of the present invention to obviate this hy the peculiar construction later to be described. Y

It has beenvproposed to obviatethis ditiiculty by making a hole in one side of the grid and having a swinging plate orgateto close up this'hole. Through this hole the fuel pipe or coil is removable.. I-Iowever, this construction is more or less expensive and is open to the objection that it does not present a solid grid and consequently is liable. to warp under the excessive heat that obtains in a furnace of this kind.

The grid o issho-wn in plan view in Fig. 2 and inside elevation in Fig. 3. It will be noticed that on one side of the gridis a deep, depending loop e. This permits the fuel pipe f to run through. the loop and then through the slot g in the side of the chimney. The down run of the fuel pipe connectswith Hence by slipping off the usual shield (not shown), and which is held under the shield-retaining lugs .7', it is Vpossible to litt the fuel pipe and the burner shell le out through the top of the grid. 0f course, the burner itself designated my williirst have to be unscrewed in the usual way and removed through the slot a. The clip a, which is used to clamp the fuel pipe to the burner shell 7; is provided with an o-bliquely-dis posed lug 0 which abuts under the grid and closes the opening through the loopof the grid. This would otherwise permit the lire to shoot out above the fuel pipe through the loop. l

I preferto employ a burner shell L in c'onnection with the preheating loop 1. This is so large that it could not be removed with the ordinary7 shield-retaining lugs j. Hence I have distort-ed two of the lugs away from each other, as is plainly shown in Fig. 2, for the purpose of permitting clearance between the burner shell and the shield-retaining` lugs when the hiel pipe is taken out of the chimney and grid.

What I claim is:

li. In a fire-pot, the combination of a grid provided with a loop in one side, a chimneyT supported below said grid and having` a slot registering with the opening in the loop, and a fuel pipe leadingthrough the opening in said loop and the opening vin said chimney and removable from the top of the chimney and grid without disassembling the same.

2. In a fire-pot, the combination of a grid provided at one side with a depending loop having an opening into said loop through the top of said grid, a chimney supported under the grid and having an opening at the side registering with the opening through the loop, and a removable fuel pipe passing through said opening in the loop and which may be taken out of the top of the chimney through the grid without disassembling the two.

3. In a fire-pot, the combination of a grid provided at one side with a loop opening through the top of the grid, a chimney sup ported under the grid and provided with an opening through its Side registering with the opening through the loop, a fuel tank supported under the chimney and the grid, and a fuel pipe having a detachable conneet-ion with vthe tank and having e cross run or' the fuel pipe lying 1n the opening through said loop and passing through the openingl in the chimney to the interiorthere-4 the same out through the grid.

4. A fire-pot, having in combination, grid provided with shield-retainingv lugs having their inner ends distorted, a Chimney supported under the grid, a detachable fuel pipe supporting a burner shell Within the seid ehininey, thev said chimney and grid being' arrengedso that the fuel pipe may be lifted out of the same without disassemtbling them and the said distorted ends of the shield-retaining` lugs being suitably direeted and distorted to permit'the burner shell clearing the same when lifted through thetop. n

45. fire-pot, having .in combination, a grid provided With a depending and upwardly-opening' loop, e ohimneysupported under the grid and provided with an opening registering- With the opening through the loop, a `detachable fuel pipe having a cross run passing through the openingl in the loop and the opening inthe chimney,` end a clip supported upon the top of the cross run of the fuel pipe and providedWith a guard for engaging under the grid to prevent lire from Shooting out'from the opening in the loopabove the fuel pipe.

In testimony Whereofl affix mv signature,

FREDERICK L. LINDHOBST.` 

